Re: [RFC][PATCH] nftables: add slash to chain syntax

[Pablo Neira Ayuso <pablo@netfilter.org>]

On Sat, Nov 30, 2013 at 03:22:48PM -0800, Phil Oester wrote:
> <v2: attach the patch this time...>
> 
> The current syntax when handling chains seems counterintuitive to me.  I would
> expect that "add chain" would have the name of the chain directly after the
> keyword "chain".  But instead, the name of the table is there, with the chain
> after.  I think a better syntax might be this:
> 
>         add chain <table>/<chain>

Frankly, I prefer to leave the syntax as is in that regard.

But there are a couple of syntax aspect that would be worth discussing
before this is set in stone, eg. the `=>' in verdict maps.

The > symbol in the bash shell, if not escaped, results in a
redirection. We could replace it by ':', so the maps will look like:

add rule ip filter OUTPUT tcp dport vmap { \
        22 : jump chain1, \
        23 : jump chain2, \
}

Just in case we consider it worth to make it easier to run nft
commands from the bash shell.